diff --git a/dev.py b/dev.py
index 587c403..5023903 100755
--- a/dev.py
+++ b/dev.py
@@ -4,7 +4,6 @@ from subprocess import run
 from argparse import ArgumentParser
 import os
 
-
 if __name__ == '__main__':
     parser = ArgumentParser()
     parser.add_argument(
@@ -20,8 +19,10 @@ if __name__ == '__main__':
         default='postgres://psql:example@localhost:5432'
     )
     args = parser.parse_args()
-    env = os.environ
+    os.environ['DB_CONNECTION_STRING'] = args.db_url
     if args.init_db:
-        run('cargo run --bin admin-cli -- --setup'.split(), env=env)
-    else:
-        print('Nothing to do')
+        run(
+            'cargo run --bin admin-cli -- --setup',
+            env=os.environ,
+            shell=True
+        )